After Estimating a Probit Model for the Likelihood of a Website

question 9

Multiple Choice

After estimating a probit model for the likelihood of a website visitor clicking through conditional on if the visit occurred on a weekday or not, you get the following results: ClickThrough_i = -1.2(0.4) + 0.8(0.2) WeekDay_i, where standard errors are reported in parenthesis. What would be the calculation that yields the marginal effect of a visit moving from a weekend to a weekday on click-throughs?

• A) -1.2 + 0.8 = -0.4
• B) 0.8
• C) Φ(-1.2 + 0.8) - Φ(-1.2)
• D) Φ(-1.2)

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Definitions:

\(k + 8\)

An algebraic expression representing the sum of a variable, \(k\), and the number 8.

\(d = \frac { 3 } { 7 }\)

Represents a specific value of the variable d, which is equal to the fraction three-sevenths.

\(d = 4\)

An equation representing that the value of the variable \(d\) is equal to 4.